Central Bureau for Astronomical Telegrams
CBAT "Transient Object Followup Reports"
PSN J02524671+4656470
PSN J02524671+4656470 2015 09 12.01 * 02 52 46.71 +46 56 47.0 18.1 U 21E 30N U2351 2 -
2015 09 12.01
M.Caimmi report the discovery of an apparent supernova at 2015 09 12.01672 on image obtained with SC Telescope 0.24-m f/6.5 and CCD Atik 314L (stack 15 frame x 30sec exposure) from Valdicerro Observatory (C92) - Loreto (AN) Italy, in the course of the Italian Supernovae Search Project (ISSP). The new object (Mag. 18.1) is located at A.R.= 02h52m46s.71, Decl.= +46°56'47".0 - The astrometry with respect to UCAC-4 stars which is 21 arcsec Est and 30 arcsec North from the centre of Galaxy UGC2351. The image of discovery is available from this link: http://www.oav.name/public/PSN_J02524671+4656470_20150912_frame.jpg
2015 09 10.8298
This transient was pre-discoveried on 2015 09 10.8298 UT in Xingming Observation Sky Survey(C42), observers Zhijian Xu, Xing Gao, using an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). We also performed astrometry, position end figures 46s.67, 47".3, mag. 18.2 (U mags for the reference stars from UCAC-4). Image can be seen: http://njzhijian.lamost.org/Supernova/PSN_J02524671+4656470-0910-C42.jpg
2015 09 12.01
Work link to discovery image: http://www.oav.name/public/PSNJ02524671_4656470.jpg
2015 09 12.89243
This transient was observed on 2015 09 12.89243 by G. Masi, remotely using the 17"-f/6.8 robotic unit part of the Virtual Telescope Project facility, at Bellatrix Astronomical Observatory in Ceccano, Italy. 120-seconds exposures, unfiltered, show the source at mag. 17.7 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 46.67; 47.1 (J2000.0, mean residuals of 0.2" on both axes).
2015 09 12,312
R.Belligoli and F.Castellani and C.Marangoni from Monte Baldo Astronomic Observatory Ferrara Monte Baldo Verona Italy , in the course of the ISSP Italian Supernovae Search Project, confirme this transient in five 60s images Luminance Filter taken on 2015 09 12,312 by Remote Observatory in Mayhill, New Mexico, USA (Itelescope) Planewave CDK 500mm focal lenght 2280 mm (f/4.6) MPCcode H06. By Astrometrica measurements: 02 52 46.70 +46 56 47.1 mag.17.5 V. Offset arcsec 23.65”E, 29.64”N . Confirm image at http://www.osservatoriomontebaldo.it/uploads/ISSP/UGC2351_PSNJ02524671_4656470.jpg
2015 09 13.022
This transient was observed on 2015 09 13.02234 by M.Caimmi from Valdicerro Observatory (C92) - Loreto (AN) Italy using 0.24-m f/6.5 SCT - CCD Atik 314L. Stack of 45 unfiltered b2x2 frames x 30 sec unguided exposures, show the source increase at 17.7 Mag. End figures for astrometry were AR. 46.70s DEC. 47.0" position was measured from reference stars UCAC-4 catalogue. The image of this observation is available http://www.oav.name/public/PSN_J02524671_4656470_20150913.jpg
2015 09 15.375
This possible supernova in UGC 2351 was detected with 12 x 10 min images using a clear filter Photometry: Mag 17.24 +/- 0.30 C (V for ref; USNOA2) Astrometry: RA 02 52 46.73 Dec +46 56 47.2 These data were collected remotely by Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia. Link to image and further information: https://www.flickr.com/photos/43846774@N02/21505996875/
2015 09 16.281
Follow-up This possible supernova in UGC 2351 was detected with 18 x 5 min images using a clear filter Photometry: Mag 17.08 +/- 0.32 C (V for ref; USNOA2) Astrometry: RA 02 52 46.71 Dec +46 56 47.2 These data were collected remotely by Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia. Link to image and further information: https://www.flickr.com/photos/43846774@N02/21505996875/
2015 09 18.85516
This transient was observed on 2015 09 18.85516 UT by Zhijian Xu and Xing Gao, using an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ), in Xingming Observation Sky Survey(C42). 40-seconds exposures, show the source at mag. 16.9 U (reference stars from UCAC-4), with position end figures 46s.68, 46".8. Image can be seen: http://njzhijian.lamost.org/Supernova/PSN_J02524671+4656470_0918.jpg
2015 09 1243
This transient was observed by Paolo Campaner (unfiltered magnitude = +16.5) on several images (limiting magnitude +20.0) obtained on September 20.1243 UT with a 0,4m reflector F/5.5 + CCD Atik-428 and exposure 10x75sec. at Ponte di Piave - Italy, in the course of the Italian Supernovae Search Project
